The thesis Existentialism in the Poetry of Antun Šoljan contains definitions of the existential notions based on philosophical works of Kierkegaard, Nietzsche, Jaspers, Sartre and Camus. Many philosophers of 20th century referred to Kierkegaard by acknowledging his notions such as anxiety, fear and despair. Philosophers of existentialism continued Kierkegaard's view while problematizing concepts of absurdity, revolt and nothingness that humanity had to confront with, especially after two world wars. While religious philosophers believed that the solution of those conditions lies in believing in God, others were convinced that there is no God and therefore an individual is alone in his existential crisis. At the content level, the themes of loneliness, nothingness, meaninglessness and resignation were recognized in the interpretation of the poems Rain, King, Northerners, Confessor and Stone Thrower. At the level of form, the poetic procedures such as metalanguage, juxtaposition of verses, allusiveness, narrative type of verse and depathetization of poetry, introduced into modern poetry by Thomas Stearns Eliot, were also recognized when comparing Eliot's and Šoljan's poems.